Removed checkstyle warnings.

[bgpcep.git] / pcep / impl / src / main / java / org / opendaylight / protocol / pcep / impl / subobject / EROUnnumberedInterfaceSubobjectParser.java

diff --git a/pcep/impl/src/main/java/org/opendaylight/protocol/pcep/impl/subobject/EROUnnumberedInterfaceSubobjectParser.java b/pcep/impl/src/main/java/org/opendaylight/protocol/pcep/impl/subobject/EROUnnumberedInterfaceSubobjectParser.java
index aae0b61e97140f11ad5de81264395f7858847452..c7061684dd23153dff3a4c1027f3c6cdeb4e8b1d 100644 (file)
--- a/pcep/impl/src/main/java/org/opendaylight/protocol/pcep/impl/subobject/EROUnnumberedInterfaceSubobjectParser.java
+++ b/pcep/impl/src/main/java/org/opendaylight/protocol/pcep/impl/subobject/EROUnnumberedInterfaceSubobjectParser.java
@@ -7,6 +7,10 @@
  */
 package org.opendaylight.protocol.pcep.impl.subobject;
 
+import com.google.common.base.Preconditions;
+
+import io.netty.buffer.ByteBuf;
+
 import org.opendaylight.protocol.pcep.impl.object.EROSubobjectUtil;
 import org.opendaylight.protocol.pcep.spi.EROSubobjectParser;
 import org.opendaylight.protocol.pcep.spi.EROSubobjectSerializer;
@@ -19,54 +23,50 @@ import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.basic.explicit.route.subobjects.subobject.type.UnnumberedCaseBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.basic.explicit.route.subobjects.subobject.type.unnumbered._case.UnnumberedBuilder;
 
-import com.google.common.primitives.UnsignedInts;
-
 /**
  * Parser for {@link UnnumberedCase}
  */
 public class EROUnnumberedInterfaceSubobjectParser implements EROSubobjectParser, EROSubobjectSerializer {
 
-       public static final int TYPE = 4;
+    public static final int TYPE = 4;
 
-       private static final int ROUTER_ID_NUMBER_LENGTH = 4;
-       private static final int INTERFACE_ID_NUMBER_LENGTH = 4;
+    private static final int ROUTER_ID_NUMBER_LENGTH = 4;
+    private static final int INTERFACE_ID_NUMBER_LENGTH = 4;
 
-       private static final int ROUTER_ID_NUMBER_OFFSET = 2;
-       private static final int INTERFACE_ID_NUMBER_OFFSET = ROUTER_ID_NUMBER_OFFSET + ROUTER_ID_NUMBER_LENGTH;
+    private static final int ROUTER_ID_NUMBER_OFFSET = 2;
+    private static final int INTERFACE_ID_NUMBER_OFFSET = ROUTER_ID_NUMBER_OFFSET + ROUTER_ID_NUMBER_LENGTH;
 
-       private static final int CONTENT_LENGTH = INTERFACE_ID_NUMBER_OFFSET + INTERFACE_ID_NUMBER_LENGTH;
+    private static final int CONTENT_LENGTH = INTERFACE_ID_NUMBER_OFFSET + INTERFACE_ID_NUMBER_LENGTH;
 
-       @Override
-       public Subobject parseSubobject(final byte[] buffer, final boolean loose) throws PCEPDeserializerException {
-               if (buffer == null || buffer.length == 0) {
-                       throw new IllegalArgumentException("Array of bytes is mandatory. Can't be null or empty.");
-               }
-               if (buffer.length != CONTENT_LENGTH) {
-                       throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + buffer.length + "; Expected: "
-                                       + CONTENT_LENGTH + ".");
-               }
-               final SubobjectBuilder builder = new SubobjectBuilder();
-               builder.setLoose(loose);
-               final UnnumberedBuilder ubuilder = new UnnumberedBuilder();
-               ubuilder.setRouterId(ByteArray.bytesToLong(ByteArray.subByte(buffer, ROUTER_ID_NUMBER_OFFSET, ROUTER_ID_NUMBER_LENGTH)));
-               ubuilder.setInterfaceId(UnsignedInts.toLong(ByteArray.bytesToInt(ByteArray.subByte(buffer, INTERFACE_ID_NUMBER_OFFSET,
-                               INTERFACE_ID_NUMBER_LENGTH))));
-               builder.setSubobjectType(new UnnumberedCaseBuilder().setUnnumbered(ubuilder.build()).build());
-               return builder.build();
-       }
+    @Override
+    public Subobject parseSubobject(final ByteBuf buffer, final boolean loose) throws PCEPDeserializerException {
+        Preconditions.checkArgument(buffer != null && buffer.isReadable(), "Array of bytes is mandatory. Can't be null or empty.");
+        if (buffer.readableBytes() != CONTENT_LENGTH) {
+            throw new PCEPDeserializerException("Wrong length of array of bytes. Passed: " + buffer.readableBytes() + "; Expected: "
+                    + CONTENT_LENGTH + ".");
+        }
+        final SubobjectBuilder builder = new SubobjectBuilder();
+        builder.setLoose(loose);
+        final UnnumberedBuilder ubuilder = new UnnumberedBuilder();
+        buffer.readerIndex(buffer.readerIndex() + ROUTER_ID_NUMBER_OFFSET);
+        ubuilder.setRouterId(buffer.readUnsignedInt());
+        ubuilder.setInterfaceId(buffer.readUnsignedInt());
+        builder.setSubobjectType(new UnnumberedCaseBuilder().setUnnumbered(ubuilder.build()).build());
+        return builder.build();
+    }
 
-       @Override
-       public byte[] serializeSubobject(final Subobject subobject) {
-               if (!(subobject.getSubobjectType() instanceof UnnumberedCase)) {
-                       throw new IllegalArgumentException("Unknown ExplicitRouteSubobject instance. Passed " + subobject.getSubobjectType().getClass()
-                                       + ". Needed UnnumberedCase.");
-               }
-               byte[] retBytes;
-               retBytes = new byte[CONTENT_LENGTH];
-               final UnnumberedSubobject specObj = ((UnnumberedCase) subobject.getSubobjectType()).getUnnumbered();
-               ByteArray.copyWhole(ByteArray.longToBytes(specObj.getRouterId(), ROUTER_ID_NUMBER_LENGTH), retBytes, ROUTER_ID_NUMBER_OFFSET);
-               System.arraycopy(ByteArray.longToBytes(specObj.getInterfaceId(), INTERFACE_ID_NUMBER_LENGTH), 0, retBytes,
-                               INTERFACE_ID_NUMBER_OFFSET, INTERFACE_ID_NUMBER_LENGTH);
-               return EROSubobjectUtil.formatSubobject(TYPE, subobject.isLoose(), retBytes);
-       }
+    @Override
+    public byte[] serializeSubobject(final Subobject subobject) {
+        if (!(subobject.getSubobjectType() instanceof UnnumberedCase)) {
+            throw new IllegalArgumentException("Unknown ExplicitRouteSubobject instance. Passed " + subobject.getSubobjectType().getClass()
+                    + ". Needed UnnumberedCase.");
+        }
+        byte[] retBytes;
+        retBytes = new byte[CONTENT_LENGTH];
+        final UnnumberedSubobject specObj = ((UnnumberedCase) subobject.getSubobjectType()).getUnnumbered();
+        ByteArray.copyWhole(ByteArray.longToBytes(specObj.getRouterId(), ROUTER_ID_NUMBER_LENGTH), retBytes, ROUTER_ID_NUMBER_OFFSET);
+        System.arraycopy(ByteArray.longToBytes(specObj.getInterfaceId(), INTERFACE_ID_NUMBER_LENGTH), 0, retBytes,
+                INTERFACE_ID_NUMBER_OFFSET, INTERFACE_ID_NUMBER_LENGTH);
+        return EROSubobjectUtil.formatSubobject(TYPE, subobject.isLoose(), retBytes);
+    }
 }